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Microsoft Windows Update certificate-rotation guidance

Advisory/Mitigation
First reported
Last updated
Happening score
H score 26
1 unique sources, 1 articles

Summary

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Microsoft told administrators to upgrade supported Windows versions before the Windows Update certificate rotation in May and June 2027. Unsupported devices will lose access to Windows Update services and stop receiving security updates. Microsoft also set version-specific deadlines for Windows 11 24H2 / Windows Server 2025, other supported Windows 11, Windows Server 2022, and Windows 10, and Windows Server 2019/2016. Devices updated through WSUS are not affected.

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Windows 11 24H2 Home and Pro end-of-updates upgrade advisory

Advisory/Mitigation
H score25 First: 19.08.2026 12:10 Last: 19.08.2026 12:10 Sources 1

About this happening: Microsoft told customers that Windows 11 24H2 Home and Pro will reach end of updates on October 13, 2026, leaving affected devices without monthly security and non-s...

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About this happening: Microsoft Windows Update is failing on a small percentage of upgraded Windows 11 PCs, blocking June 2026 cumulative updates and producing 0x80073712 or 0x800f099...

Open Happening

Timeline

  1. 09.10.2026 13:12 2 articles · 2h ago

    Microsoft Windows Update certificate-rotation guidance

    Initial Disclosure

    Microsoft warned that unsupported Windows devices will stop getting updates when the Windows Update certificates expire in 2027. Administrators were told to identify older systems and start upgrade planning before the cutoff.

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